3 Copyright Andrew Tridgell <tridge@samba.org> 2000
4 Copyright Tim Potter <tpot@samba.org> 2000
5 Copyright Andrew Bartlett <abartlet@samba.org> 2002
6 Copyright Guenther Deschner <gd@samba.org> 2005-2007
8 largely based on pam_userdb by Cristian Gafton <gafton@redhat.com>
9 also contains large slabs of code from pam_unix by Elliot Lee <sopwith@redhat.com>
10 (see copyright below for full details)
13 #include "pam_winbind.h"
15 #define _PAM_LOG_FUNCTION_ENTER(function, pamh, ctrl, flags) \
17 _pam_log_debug(pamh, ctrl, LOG_DEBUG, "[pamh: 0x%08x] ENTER: " function " (flags: 0x%04x)", (uint32) pamh, flags); \
18 _pam_log_state(pamh, ctrl); \
21 #define _PAM_LOG_FUNCTION_LEAVE(function, pamh, ctrl, retval) \
23 _pam_log_debug(pamh, ctrl, LOG_DEBUG, "[pamh: 0x%08x] LEAVE: " function " returning %d", (uint32) pamh, retval); \
24 _pam_log_state(pamh, ctrl); \
29 #define MAX_PASSWD_TRIES 3
32 * Work around the pam API that has functions with void ** as parameters.
33 * These lead to strict aliasing warnings with gcc.
35 static int _pam_get_item(const pam_handle_t
*pamh
, int item_type
,
38 const void **item
= (const void **)_item
;
39 return pam_get_item(pamh
, item_type
, item
);
41 static int _pam_get_data(const pam_handle_t
*pamh
,
42 const char *module_data_name
, const void *_data
)
44 const void **data
= (const void **)_data
;
45 return pam_get_data(pamh
, module_data_name
, data
);
50 #ifdef HAVE_PAM_VSYSLOG
51 static void _pam_log_int(const pam_handle_t
*pamh
, int err
, const char *format
, va_list args
)
53 pam_vsyslog(pamh
, err
, format
, args
);
56 static void _pam_log_int(const pam_handle_t
*pamh
, int err
, const char *format
, va_list args
)
61 _pam_get_item(pamh
, PAM_SERVICE
, &service
);
63 format2
= malloc(strlen(MODULE_NAME
)+strlen(format
)+strlen(service
)+5);
64 if (format2
== NULL
) {
65 /* what else todo ? */
66 vsyslog(err
, format
, args
);
70 sprintf(format2
, "%s(%s): %s", MODULE_NAME
, service
, format
);
71 vsyslog(err
, format2
, args
);
74 #endif /* HAVE_PAM_VSYSLOG */
76 static BOOL
_pam_log_is_silent(int ctrl
)
78 return on(ctrl
, WINBIND_SILENT
);
81 static void _pam_log(const pam_handle_t
*pamh
, int ctrl
, int err
, const char *format
, ...) PRINTF_ATTRIBUTE(4,5);
82 static void _pam_log(const pam_handle_t
*pamh
, int ctrl
, int err
, const char *format
, ...)
86 if (_pam_log_is_silent(ctrl
)) {
90 va_start(args
, format
);
91 _pam_log_int(pamh
, err
, format
, args
);
95 static BOOL
_pam_log_is_debug_enabled(int ctrl
)
101 if (_pam_log_is_silent(ctrl
)) {
105 if (!(ctrl
& WINBIND_DEBUG_ARG
)) {
112 static BOOL
_pam_log_is_debug_state_enabled(int ctrl
)
114 if (!(ctrl
& WINBIND_DEBUG_STATE
)) {
118 return _pam_log_is_debug_enabled(ctrl
);
121 static void _pam_log_debug(const pam_handle_t
*pamh
, int ctrl
, int err
, const char *format
, ...) PRINTF_ATTRIBUTE(4,5);
122 static void _pam_log_debug(const pam_handle_t
*pamh
, int ctrl
, int err
, const char *format
, ...)
126 if (!_pam_log_is_debug_enabled(ctrl
)) {
130 va_start(args
, format
);
131 _pam_log_int(pamh
, err
, format
, args
);
135 static void _pam_log_state_datum(const pam_handle_t
*pamh
, int ctrl
, int item_type
, const char *key
, int is_string
)
137 const void *data
= NULL
;
138 if (item_type
!= 0) {
139 pam_get_item(pamh
, item_type
, &data
);
141 pam_get_data(pamh
, key
, &data
);
144 const char *type
= (item_type
!= 0) ? "ITEM" : "DATA";
145 if (is_string
!= 0) {
146 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
, "[pamh: 0x%08x] STATE: %s(%s) = \"%s\" (0x%08x)", (uint32
) pamh
, type
, key
, (const char *) data
, (uint32
) data
);
148 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
, "[pamh: 0x%08x] STATE: %s(%s) = 0x%08x", (uint32
) pamh
, type
, key
, (uint32
) data
);
153 #define _PAM_LOG_STATE_DATA_POINTER(pamh, ctrl, module_data_name) \
154 _pam_log_state_datum(pamh, ctrl, 0, module_data_name, 0)
156 #define _PAM_LOG_STATE_DATA_STRING(pamh, ctrl, module_data_name) \
157 _pam_log_state_datum(pamh, ctrl, 0, module_data_name, 1)
159 #define _PAM_LOG_STATE_ITEM_POINTER(pamh, ctrl, item_type) \
160 _pam_log_state_datum(pamh, ctrl, item_type, #item_type, 0)
162 #define _PAM_LOG_STATE_ITEM_STRING(pamh, ctrl, item_type) \
163 _pam_log_state_datum(pamh, ctrl, item_type, #item_type, 1)
165 #ifdef DEBUG_PASSWORD
166 #define _LOG_PASSWORD_AS_STRING 1
168 #define _LOG_PASSWORD_AS_STRING 0
171 #define _PAM_LOG_STATE_ITEM_PASSWORD(pamh, ctrl, item_type) \
172 _pam_log_state_datum(pamh, ctrl, item_type, #item_type, _LOG_PASSWORD_AS_STRING)
174 static void _pam_log_state(const pam_handle_t
*pamh
, int ctrl
)
176 if (!_pam_log_is_debug_state_enabled(ctrl
)) {
180 _PAM_LOG_STATE_ITEM_STRING(pamh
, ctrl
, PAM_SERVICE
);
181 _PAM_LOG_STATE_ITEM_STRING(pamh
, ctrl
, PAM_USER
);
182 _PAM_LOG_STATE_ITEM_STRING(pamh
, ctrl
, PAM_TTY
);
183 _PAM_LOG_STATE_ITEM_STRING(pamh
, ctrl
, PAM_RHOST
);
184 _PAM_LOG_STATE_ITEM_STRING(pamh
, ctrl
, PAM_RUSER
);
185 _PAM_LOG_STATE_ITEM_PASSWORD(pamh
, ctrl
, PAM_OLDAUTHTOK
);
186 _PAM_LOG_STATE_ITEM_PASSWORD(pamh
, ctrl
, PAM_AUTHTOK
);
187 _PAM_LOG_STATE_ITEM_STRING(pamh
, ctrl
, PAM_USER_PROMPT
);
188 _PAM_LOG_STATE_ITEM_POINTER(pamh
, ctrl
, PAM_CONV
);
189 #ifdef PAM_FAIL_DELAY
190 _PAM_LOG_STATE_ITEM_POINTER(pamh
, ctrl
, PAM_FAIL_DELAY
);
192 #ifdef PAM_REPOSITORY
193 _PAM_LOG_STATE_ITEM_POINTER(pamh
, ctrl
, PAM_REPOSITORY
);
196 _PAM_LOG_STATE_DATA_STRING(pamh
, ctrl
, PAM_WINBIND_HOMEDIR
);
197 _PAM_LOG_STATE_DATA_STRING(pamh
, ctrl
, PAM_WINBIND_LOGONSCRIPT
);
198 _PAM_LOG_STATE_DATA_STRING(pamh
, ctrl
, PAM_WINBIND_LOGONSERVER
);
199 _PAM_LOG_STATE_DATA_STRING(pamh
, ctrl
, PAM_WINBIND_PROFILEPATH
);
200 _PAM_LOG_STATE_DATA_STRING(pamh
, ctrl
, PAM_WINBIND_NEW_AUTHTOK_REQD
); /* Use atoi to get PAM result code */
201 _PAM_LOG_STATE_DATA_STRING(pamh
, ctrl
, PAM_WINBIND_NEW_AUTHTOK_REQD_DURING_AUTH
);
202 _PAM_LOG_STATE_DATA_POINTER(pamh
, ctrl
, PAM_WINBIND_PWD_LAST_SET
);
205 static int _pam_parse(const pam_handle_t
*pamh
, int flags
, int argc
, const char **argv
, dictionary
**result_d
)
208 const char *config_file
= NULL
;
211 dictionary
*d
= NULL
;
213 if (flags
& PAM_SILENT
) {
214 ctrl
|= WINBIND_SILENT
;
217 for (i
=argc
,v
=argv
; i
-- > 0; ++v
) {
218 if (!strncasecmp(*v
, "config", strlen("config"))) {
219 ctrl
|= WINBIND_CONFIG_FILE
;
225 if (config_file
== NULL
) {
226 config_file
= PAM_WINBIND_CONFIG_FILE
;
229 d
= iniparser_load(config_file
);
231 goto config_from_pam
;
234 if (iniparser_getboolean(d
, "global:debug", False
)) {
235 ctrl
|= WINBIND_DEBUG_ARG
;
238 if (iniparser_getboolean(d
, "global:debug_state", False
)) {
239 ctrl
|= WINBIND_DEBUG_STATE
;
242 if (iniparser_getboolean(d
, "global:cached_login", False
)) {
243 ctrl
|= WINBIND_CACHED_LOGIN
;
246 if (iniparser_getboolean(d
, "global:krb5_auth", False
)) {
247 ctrl
|= WINBIND_KRB5_AUTH
;
250 if (iniparser_getboolean(d
, "global:silent", False
)) {
251 ctrl
|= WINBIND_SILENT
;
254 if (iniparser_getstr(d
, "global:krb5_ccache_type") != NULL
) {
255 ctrl
|= WINBIND_KRB5_CCACHE_TYPE
;
258 if ((iniparser_getstr(d
, "global:require-membership-of") != NULL
) ||
259 (iniparser_getstr(d
, "global:require_membership_of") != NULL
)) {
260 ctrl
|= WINBIND_REQUIRED_MEMBERSHIP
;
263 if (iniparser_getboolean(d
, "global:try_first_pass", False
)) {
264 ctrl
|= WINBIND_TRY_FIRST_PASS_ARG
;
268 /* step through arguments */
269 for (i
=argc
,v
=argv
; i
-- > 0; ++v
) {
271 /* generic options */
272 if (!strcmp(*v
,"debug"))
273 ctrl
|= WINBIND_DEBUG_ARG
;
274 else if (!strcasecmp(*v
, "debug_state"))
275 ctrl
|= WINBIND_DEBUG_STATE
;
276 else if (!strcasecmp(*v
, "silent"))
277 ctrl
|= WINBIND_SILENT
;
278 else if (!strcasecmp(*v
, "use_authtok"))
279 ctrl
|= WINBIND_USE_AUTHTOK_ARG
;
280 else if (!strcasecmp(*v
, "use_first_pass"))
281 ctrl
|= WINBIND_USE_FIRST_PASS_ARG
;
282 else if (!strcasecmp(*v
, "try_first_pass"))
283 ctrl
|= WINBIND_TRY_FIRST_PASS_ARG
;
284 else if (!strcasecmp(*v
, "unknown_ok"))
285 ctrl
|= WINBIND_UNKNOWN_OK_ARG
;
286 else if (!strncasecmp(*v
, "require_membership_of", strlen("require_membership_of")))
287 ctrl
|= WINBIND_REQUIRED_MEMBERSHIP
;
288 else if (!strncasecmp(*v
, "require-membership-of", strlen("require-membership-of")))
289 ctrl
|= WINBIND_REQUIRED_MEMBERSHIP
;
290 else if (!strcasecmp(*v
, "krb5_auth"))
291 ctrl
|= WINBIND_KRB5_AUTH
;
292 else if (!strncasecmp(*v
, "krb5_ccache_type", strlen("krb5_ccache_type")))
293 ctrl
|= WINBIND_KRB5_CCACHE_TYPE
;
294 else if (!strcasecmp(*v
, "cached_login"))
295 ctrl
|= WINBIND_CACHED_LOGIN
;
297 _pam_log(pamh
, ctrl
, LOG_ERR
, "pam_parse: unknown option: %s", *v
);
307 iniparser_freedict(d
);
314 static void _pam_winbind_cleanup_func(pam_handle_t
*pamh
, void *data
, int error_status
)
316 int ctrl
= _pam_parse(pamh
, 0, 0, NULL
, NULL
);
317 if (_pam_log_is_debug_state_enabled(ctrl
)) {
318 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
, "[pamh: 0x%08x] CLEAN: cleaning up PAM data 0x%08x (error_status = %d)", (uint32
) pamh
, (uint32
) data
, error_status
);
324 static const struct ntstatus_errors
{
325 const char *ntstatus_string
;
326 const char *error_string
;
327 } ntstatus_errors
[] = {
328 {"NT_STATUS_OK", "Success"},
329 {"NT_STATUS_BACKUP_CONTROLLER", "No primary Domain Controler available"},
330 {"NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND", "No domain controllers found"},
331 {"NT_STATUS_NO_LOGON_SERVERS", "No logon servers"},
332 {"NT_STATUS_PWD_TOO_SHORT", "Password too short"},
333 {"NT_STATUS_PWD_TOO_RECENT", "The password of this user is too recent to change"},
334 {"NT_STATUS_PWD_HISTORY_CONFLICT", "Password is already in password history"},
335 {"NT_STATUS_PASSWORD_EXPIRED", "Your password has expired"},
336 {"NT_STATUS_PASSWORD_MUST_CHANGE", "You need to change your password now"},
337 {"NT_STATUS_INVALID_WORKSTATION", "You are not allowed to logon from this workstation"},
338 {"NT_STATUS_INVALID_LOGON_HOURS", "You are not allowed to logon at this time"},
339 {"NT_STATUS_ACCOUNT_EXPIRED", "Your account has expired. Please contact your System administrator"}, /* SCNR */
340 {"NT_STATUS_ACCOUNT_DISABLED", "Your account is disabled. Please contact your System administrator"}, /* SCNR */
341 {"NT_STATUS_ACCOUNT_LOCKED_OUT", "Your account has been locked. Please contact your System administrator"}, /* SCNR */
342 {"NT_STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT", "Invalid Trust Account"},
343 {"NT_STATUS_NOLOGON_SERVER_TRUST_ACCOUNT", "Invalid Trust Account"},
344 {"NT_STATUS_NOLOGON_INTERDOMAIN_TRUST_ACCOUNT", "Invalid Trust Account"},
345 {"NT_STATUS_ACCESS_DENIED", "Access is denied"},
349 const char *_get_ntstatus_error_string(const char *nt_status_string
)
352 for (i
=0; ntstatus_errors
[i
].ntstatus_string
!= NULL
; i
++) {
353 if (!strcasecmp(ntstatus_errors
[i
].ntstatus_string
, nt_status_string
)) {
354 return ntstatus_errors
[i
].error_string
;
360 /* --- authentication management functions --- */
362 /* Attempt a conversation */
364 static int converse(pam_handle_t
*pamh
, int nargs
,
365 struct pam_message
**message
,
366 struct pam_response
**response
)
369 struct pam_conv
*conv
;
371 retval
= _pam_get_item(pamh
, PAM_CONV
, &conv
);
372 if (retval
== PAM_SUCCESS
) {
373 retval
= conv
->conv(nargs
, (const struct pam_message
**)message
,
374 response
, conv
->appdata_ptr
);
377 return retval
; /* propagate error status */
381 static int _make_remark(pam_handle_t
* pamh
, int flags
, int type
, const char *text
)
383 int retval
= PAM_SUCCESS
;
385 struct pam_message
*pmsg
[1], msg
[1];
386 struct pam_response
*resp
;
388 if (flags
& WINBIND_SILENT
) {
393 msg
[0].msg
= CONST_DISCARD(char *, text
);
394 msg
[0].msg_style
= type
;
397 retval
= converse(pamh
, 1, pmsg
, &resp
);
400 _pam_drop_reply(resp
, 1);
405 static int _make_remark_v(pam_handle_t
* pamh
, int flags
, int type
, const char *format
, va_list args
)
410 ret
= vasprintf(&var
, format
, args
);
412 _pam_log(pamh
, 0, LOG_ERR
, "memory allocation failure");
416 ret
= _make_remark(pamh
, flags
, type
, var
);
421 static int _make_remark_format(pam_handle_t
* pamh
, int flags
, int type
, const char *format
, ...) PRINTF_ATTRIBUTE(4,5);
422 static int _make_remark_format(pam_handle_t
* pamh
, int flags
, int type
, const char *format
, ...)
427 va_start(args
, format
);
428 ret
= _make_remark_v(pamh
, flags
, type
, format
, args
);
433 static int pam_winbind_request(pam_handle_t
* pamh
, int ctrl
,
434 enum winbindd_cmd req_type
,
435 struct winbindd_request
*request
,
436 struct winbindd_response
*response
)
438 /* Fill in request and send down pipe */
439 init_request(request
, req_type
);
441 if (write_sock(request
, sizeof(*request
), 0, 0) == -1) {
442 _pam_log(pamh
, ctrl
, LOG_ERR
, "pam_winbind_request: write to socket failed!");
444 return PAM_SERVICE_ERR
;
448 if (read_reply(response
) == -1) {
449 _pam_log(pamh
, ctrl
, LOG_ERR
, "pam_winbind_request: read from socket failed!");
451 return PAM_SERVICE_ERR
;
454 /* We are done with the socket - close it and avoid mischeif */
457 /* Copy reply data from socket */
458 if (response
->result
== WINBINDD_OK
) {
462 /* no need to check for pam_error codes for getpwnam() */
465 case WINBINDD_GETPWNAM
:
466 case WINBINDD_LOOKUPNAME
:
467 if (strlen(response
->data
.auth
.nt_status_string
) > 0) {
468 _pam_log(pamh
, ctrl
, LOG_ERR
, "request failed, NT error was %s",
469 response
->data
.auth
.nt_status_string
);
471 _pam_log(pamh
, ctrl
, LOG_ERR
, "request failed");
473 return PAM_USER_UNKNOWN
;
478 if (response
->data
.auth
.pam_error
!= PAM_SUCCESS
) {
479 _pam_log(pamh
, ctrl
, LOG_ERR
, "request failed: %s, PAM error was %s (%d), NT error was %s",
480 response
->data
.auth
.error_string
,
481 pam_strerror(pamh
, response
->data
.auth
.pam_error
),
482 response
->data
.auth
.pam_error
,
483 response
->data
.auth
.nt_status_string
);
484 return response
->data
.auth
.pam_error
;
487 _pam_log(pamh
, ctrl
, LOG_ERR
, "request failed, but PAM error 0!");
489 return PAM_SERVICE_ERR
;
492 static int pam_winbind_request_log(pam_handle_t
* pamh
,
494 enum winbindd_cmd req_type
,
495 struct winbindd_request
*request
,
496 struct winbindd_response
*response
,
501 retval
= pam_winbind_request(pamh
, ctrl
, req_type
, request
, response
);
505 /* incorrect password */
506 _pam_log(pamh
, ctrl
, LOG_WARNING
, "user '%s' denied access (incorrect password or invalid membership)", user
);
508 case PAM_ACCT_EXPIRED
:
509 /* account expired */
510 _pam_log(pamh
, ctrl
, LOG_WARNING
, "user '%s' account expired", user
);
512 case PAM_AUTHTOK_EXPIRED
:
513 /* password expired */
514 _pam_log(pamh
, ctrl
, LOG_WARNING
, "user '%s' password expired", user
);
516 case PAM_NEW_AUTHTOK_REQD
:
517 /* new password required */
518 _pam_log(pamh
, ctrl
, LOG_WARNING
, "user '%s' new password required", user
);
520 case PAM_USER_UNKNOWN
:
521 /* the user does not exist */
522 _pam_log_debug(pamh
, ctrl
, LOG_NOTICE
, "user '%s' not found", user
);
523 if (ctrl
& WINBIND_UNKNOWN_OK_ARG
) {
528 /* Otherwise, the authentication looked good */
532 case WINBINDD_PAM_AUTH
:
533 _pam_log(pamh
, ctrl
, LOG_NOTICE
, "user '%s' granted access", user
);
535 case WINBINDD_PAM_CHAUTHTOK
:
536 _pam_log(pamh
, ctrl
, LOG_NOTICE
, "user '%s' password changed", user
);
539 _pam_log(pamh
, ctrl
, LOG_NOTICE
, "user '%s' OK", user
);
545 /* we don't know anything about this return value */
546 _pam_log(pamh
, ctrl
, LOG_ERR
, "internal module error (retval = %d, user = '%s')",
553 * send a password expiry message if required
555 * @param pamh PAM handle
556 * @param ctrl PAM winbind options.
557 * @param next_change expected (calculated) next expiry date.
558 * @param already_expired pointer to a boolean to indicate if the password is
561 * @return boolean Returns True if message has been sent, False if not.
564 static BOOL
_pam_send_password_expiry_message(pam_handle_t
*pamh
, int ctrl
, time_t next_change
, time_t now
, BOOL
*already_expired
)
567 struct tm tm_now
, tm_next_change
;
569 if (already_expired
) {
570 *already_expired
= False
;
573 if (next_change
<= now
) {
574 PAM_WB_REMARK_DIRECT(pamh
, ctrl
, "NT_STATUS_PASSWORD_EXPIRED");
575 if (already_expired
) {
576 *already_expired
= True
;
581 if ((next_change
< 0) ||
582 (next_change
> now
+ DAYS_TO_WARN_BEFORE_PWD_EXPIRES
* SECONDS_PER_DAY
)) {
586 if ((localtime_r(&now
, &tm_now
) == NULL
) ||
587 (localtime_r(&next_change
, &tm_next_change
) == NULL
)) {
591 days
= (tm_next_change
.tm_yday
+tm_next_change
.tm_year
*365) - (tm_now
.tm_yday
+tm_now
.tm_year
*365);
594 _make_remark(pamh
, ctrl
, PAM_TEXT_INFO
, "Your password expires today");
598 if (days
> 0 && days
< DAYS_TO_WARN_BEFORE_PWD_EXPIRES
) {
599 _make_remark_format(pamh
, ctrl
, PAM_TEXT_INFO
, "Your password will expire in %d %s",
600 days
, (days
> 1) ? "days":"day");
608 * Send a warning if the password expires in the near future
610 * @param pamh PAM handle
611 * @param ctrl PAM winbind options.
612 * @param response The full authentication response structure.
613 * @param already_expired boolean, is the pwd already expired?
618 static void _pam_warn_password_expiry(pam_handle_t
*pamh
,
620 const struct winbindd_response
*response
,
621 BOOL
*already_expired
)
623 time_t now
= time(NULL
);
624 time_t next_change
= 0;
626 if (already_expired
) {
627 *already_expired
= False
;
630 /* accounts with ACB_PWNOEXP set never receive a warning */
631 if (response
->data
.auth
.info3
.acct_flags
& ACB_PWNOEXP
) {
635 /* no point in sending a warning if this is a grace logon */
636 if (PAM_WB_GRACE_LOGON(response
->data
.auth
.info3
.user_flgs
)) {
640 /* check if the info3 must change timestamp has been set */
641 next_change
= response
->data
.auth
.info3
.pass_must_change_time
;
643 if (_pam_send_password_expiry_message(pamh
, flags
, next_change
, now
,
648 /* now check for the global password policy */
649 /* good catch from Ralf Haferkamp: an expiry of "never" is translated
651 if (response
->data
.auth
.policy
.expire
<= 0) {
655 next_change
= response
->data
.auth
.info3
.pass_last_set_time
+
656 response
->data
.auth
.policy
.expire
;
658 if (_pam_send_password_expiry_message(pamh
, flags
, next_change
, now
,
663 /* no warning sent */
666 #define IS_SID_STRING(name) (strncmp("S-", name, 2) == 0)
668 static BOOL
safe_append_string(char *dest
,
670 int dest_buffer_size
)
672 * Append a string, making sure not to overflow and to always return a NULL-terminated
675 * @param dest Destination string buffer (must already be NULL-terminated).
676 * @param src Source string buffer.
677 * @param dest_buffer_size Size of dest buffer in bytes.
679 * @return False if dest buffer is not big enough (no bytes copied), True on success.
682 int dest_length
= strlen(dest
);
683 int src_length
= strlen(src
);
685 if ( dest_length
+ src_length
+ 1 > dest_buffer_size
) {
689 memcpy(dest
+ dest_length
, src
, src_length
+ 1);
693 static BOOL
winbind_name_to_sid_string(pam_handle_t
*pamh
,
697 char *sid_list_buffer
,
698 int sid_list_buffer_size
)
700 * Convert a names into a SID string, appending it to a buffer.
702 * @param pamh PAM handle
703 * @param ctrl PAM winbind options.
704 * @param user User in PAM request.
705 * @param name Name to convert.
706 * @param sid_list_buffer Where to append the string sid.
707 * @param sid_list_buffer Size of sid_list_buffer (in bytes).
709 * @return False on failure, True on success.
712 const char* sid_string
;
713 struct winbindd_response sid_response
;
716 if (IS_SID_STRING(name
)) {
719 struct winbindd_request sid_request
;
721 ZERO_STRUCT(sid_request
);
722 ZERO_STRUCT(sid_response
);
724 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
, "no sid given, looking up: %s\n", name
);
726 /* fortunatly winbindd can handle non-separated names */
727 strncpy(sid_request
.data
.name
.name
, name
,
728 sizeof(sid_request
.data
.name
.name
) - 1);
730 if (pam_winbind_request_log(pamh
, ctrl
, WINBINDD_LOOKUPNAME
, &sid_request
, &sid_response
, user
)) {
731 _pam_log(pamh
, ctrl
, LOG_INFO
, "could not lookup name: %s\n", name
);
735 sid_string
= sid_response
.data
.sid
.sid
;
738 if (!safe_append_string(sid_list_buffer
, sid_string
, sid_list_buffer_size
)) {
745 static BOOL
winbind_name_list_to_sid_string_list(pam_handle_t
*pamh
,
748 const char *name_list
,
749 char *sid_list_buffer
,
750 int sid_list_buffer_size
)
752 * Convert a list of names into a list of sids.
754 * @param pamh PAM handle
755 * @param ctrl PAM winbind options.
756 * @param user User in PAM request.
757 * @param name_list List of names or string sids, separated by commas.
758 * @param sid_list_buffer Where to put the list of string sids.
759 * @param sid_list_buffer Size of sid_list_buffer (in bytes).
761 * @return False on failure, True on success.
765 char *current_name
= NULL
;
766 const char *search_location
;
769 if ( sid_list_buffer_size
> 0 ) {
770 sid_list_buffer
[0] = 0;
773 search_location
= name_list
;
774 while ( (comma
= strstr(search_location
, ",")) != NULL
) {
775 current_name
= strndup(search_location
, comma
- search_location
);
776 if (NULL
== current_name
) {
780 if (!winbind_name_to_sid_string(pamh
, ctrl
, user
, current_name
, sid_list_buffer
, sid_list_buffer_size
)) {
784 SAFE_FREE(current_name
);
786 if (!safe_append_string(sid_list_buffer
, ",", sid_list_buffer_size
)) {
790 search_location
= comma
+ 1;
793 if (!winbind_name_to_sid_string(pamh
, ctrl
, user
, search_location
, sid_list_buffer
, sid_list_buffer_size
)) {
800 SAFE_FREE(current_name
);
805 * put krb5ccname variable into environment
807 * @param pamh PAM handle
808 * @param ctrl PAM winbind options.
809 * @param krb5ccname env variable retrieved from winbindd.
814 static void _pam_setup_krb5_env(pam_handle_t
*pamh
, int ctrl
, const char *krb5ccname
)
819 if (off(ctrl
, WINBIND_KRB5_AUTH
)) {
823 if (!krb5ccname
|| (strlen(krb5ccname
) == 0)) {
827 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
, "request returned KRB5CCNAME: %s", krb5ccname
);
829 if (snprintf(var
, sizeof(var
), "KRB5CCNAME=%s", krb5ccname
) == -1) {
833 ret
= pam_putenv(pamh
, var
);
835 _pam_log(pamh
, ctrl
, LOG_ERR
, "failed to set KRB5CCNAME to %s: %s",
836 var
, pam_strerror(pamh
, ret
));
841 * Set string into the PAM stack.
843 * @param pamh PAM handle
844 * @param ctrl PAM winbind options.
845 * @param data_name Key name for pam_set_data.
846 * @param value String value.
851 static void _pam_set_data_string(pam_handle_t
*pamh
, int ctrl
, const char *data_name
, const char *value
)
855 if ( !data_name
|| !value
|| (strlen(data_name
) == 0) || (strlen(value
) == 0) ) {
859 ret
= pam_set_data(pamh
, data_name
, (void *)strdup(value
), _pam_winbind_cleanup_func
);
861 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
, "Could not set data %s: %s\n",
862 data_name
, pam_strerror(pamh
, ret
));
868 * Set info3 strings into the PAM stack.
870 * @param pamh PAM handle
871 * @param ctrl PAM winbind options.
872 * @param data_name Key name for pam_set_data.
873 * @param value String value.
878 static void _pam_set_data_info3(pam_handle_t
*pamh
, int ctrl
, struct winbindd_response
*response
)
880 _pam_set_data_string(pamh
, ctrl
, PAM_WINBIND_HOMEDIR
, response
->data
.auth
.info3
.home_dir
);
881 _pam_set_data_string(pamh
, ctrl
, PAM_WINBIND_LOGONSCRIPT
, response
->data
.auth
.info3
.logon_script
);
882 _pam_set_data_string(pamh
, ctrl
, PAM_WINBIND_LOGONSERVER
, response
->data
.auth
.info3
.logon_srv
);
883 _pam_set_data_string(pamh
, ctrl
, PAM_WINBIND_PROFILEPATH
, response
->data
.auth
.info3
.profile_path
);
887 * Free info3 strings in the PAM stack.
889 * @param pamh PAM handle
894 static void _pam_free_data_info3(pam_handle_t
*pamh
)
896 pam_set_data(pamh
, PAM_WINBIND_HOMEDIR
, NULL
, NULL
);
897 pam_set_data(pamh
, PAM_WINBIND_LOGONSCRIPT
, NULL
, NULL
);
898 pam_set_data(pamh
, PAM_WINBIND_LOGONSERVER
, NULL
, NULL
);
899 pam_set_data(pamh
, PAM_WINBIND_PROFILEPATH
, NULL
, NULL
);
903 * Send PAM_ERROR_MSG for cached or grace logons.
905 * @param pamh PAM handle
906 * @param ctrl PAM winbind options.
907 * @param username User in PAM request.
908 * @param info3_user_flgs Info3 flags containing logon type bits.
913 static void _pam_warn_logon_type(pam_handle_t
*pamh
, int ctrl
, const char *username
, uint32 info3_user_flgs
)
915 /* inform about logon type */
916 if (PAM_WB_GRACE_LOGON(info3_user_flgs
)) {
918 _make_remark(pamh
, ctrl
, PAM_ERROR_MSG
,
919 "Grace login. Please change your password as soon you're online again");
920 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
,
921 "User %s logged on using grace logon\n", username
);
923 } else if (PAM_WB_CACHED_LOGON(info3_user_flgs
)) {
925 _make_remark(pamh
, ctrl
, PAM_ERROR_MSG
,
926 "Domain Controller unreachable, using cached credentials instead. Network resources may be unavailable");
927 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
,
928 "User %s logged on using cached credentials\n", username
);
933 * Send PAM_ERROR_MSG for krb5 errors.
935 * @param pamh PAM handle
936 * @param ctrl PAM winbind options.
937 * @param username User in PAM request.
938 * @param info3_user_flgs Info3 flags containing logon type bits.
943 static void _pam_warn_krb5_failure(pam_handle_t
*pamh
, int ctrl
, const char *username
, uint32 info3_user_flgs
)
945 if (PAM_WB_KRB5_CLOCK_SKEW(info3_user_flgs
)) {
946 _make_remark(pamh
, ctrl
, PAM_ERROR_MSG
,
947 "Failed to establish your Kerberos Ticket cache "
948 "due time differences\n"
949 "with the domain controller. "
950 "Please verify the system time.\n");
951 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
,
952 "User %s: Clock skew when getting Krb5 TGT\n", username
);
957 * Compose Password Restriction String for a PAM_ERROR_MSG conversation.
959 * @param response The struct winbindd_response.
961 * @return string (caller needs to free).
964 static char *_pam_compose_pwd_restriction_string(struct winbindd_response
*response
)
967 size_t offset
= 0, ret
= 0, str_size
= 1024;
969 str
= (char *)malloc(str_size
);
974 memset(str
, '\0', str_size
);
976 offset
= snprintf(str
, str_size
, "Your password ");
981 if (response
->data
.auth
.policy
.min_length_password
> 0) {
982 ret
= snprintf(str
+offset
, str_size
-offset
,
983 "must be at least %d characters; ",
984 response
->data
.auth
.policy
.min_length_password
);
991 if (response
->data
.auth
.policy
.password_history
> 0) {
992 ret
= snprintf(str
+offset
, str_size
-offset
,
993 "cannot repeat any of your previous %d passwords; ",
994 response
->data
.auth
.policy
.password_history
);
1001 if (response
->data
.auth
.policy
.password_properties
& DOMAIN_PASSWORD_COMPLEX
) {
1002 ret
= snprintf(str
+offset
, str_size
-offset
,
1003 "must contain capitals, numerals or punctuation; "
1004 "and cannot contain your account or full name; ");
1011 ret
= snprintf(str
+offset
, str_size
-offset
,
1012 "Please type a different password. "
1013 "Type a password which meets these requirements in both text boxes.");
1025 /* talk to winbindd */
1026 static int winbind_auth_request(pam_handle_t
* pamh
,
1032 struct winbindd_response
*p_response
,
1033 time_t *pwd_last_set
,
1036 struct winbindd_request request
;
1037 struct winbindd_response response
;
1039 BOOL already_expired
= False
;
1041 ZERO_STRUCT(request
);
1042 ZERO_STRUCT(response
);
1048 strncpy(request
.data
.auth
.user
, user
,
1049 sizeof(request
.data
.auth
.user
)-1);
1051 strncpy(request
.data
.auth
.pass
, pass
,
1052 sizeof(request
.data
.auth
.pass
)-1);
1054 request
.data
.auth
.krb5_cc_type
[0] = '\0';
1055 request
.data
.auth
.uid
= -1;
1057 request
.flags
= WBFLAG_PAM_INFO3_TEXT
| WBFLAG_PAM_CONTACT_TRUSTDOM
;
1059 if (ctrl
& (WINBIND_KRB5_AUTH
|WINBIND_CACHED_LOGIN
)) {
1060 struct passwd
*pwd
= NULL
;
1062 pwd
= getpwnam(user
);
1064 return PAM_USER_UNKNOWN
;
1066 request
.data
.auth
.uid
= pwd
->pw_uid
;
1069 if (ctrl
& WINBIND_KRB5_AUTH
) {
1071 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
, "enabling krb5 login flag\n");
1073 request
.flags
|= WBFLAG_PAM_KRB5
| WBFLAG_PAM_FALLBACK_AFTER_KRB5
;
1076 if (ctrl
& WINBIND_CACHED_LOGIN
) {
1077 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
, "enabling cached login flag\n");
1078 request
.flags
|= WBFLAG_PAM_CACHED_LOGIN
;
1083 request
.flags
|= WBFLAG_PAM_UNIX_NAME
;
1086 if (cctype
!= NULL
) {
1087 strncpy(request
.data
.auth
.krb5_cc_type
, cctype
,
1088 sizeof(request
.data
.auth
.krb5_cc_type
) - 1);
1089 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
, "enabling request for a %s krb5 ccache\n", cctype
);
1092 request
.data
.auth
.require_membership_of_sid
[0] = '\0';
1094 if (member
!= NULL
) {
1096 if (!winbind_name_list_to_sid_string_list(pamh
, ctrl
, user
, member
,
1097 request
.data
.auth
.require_membership_of_sid
,
1098 sizeof(request
.data
.auth
.require_membership_of_sid
))) {
1100 _pam_log_debug(pamh
, ctrl
, LOG_ERR
, "failed to serialize membership of sid \"%s\"\n", member
);
1101 return PAM_AUTH_ERR
;
1105 ret
= pam_winbind_request_log(pamh
, ctrl
, WINBINDD_PAM_AUTH
, &request
, &response
, user
);
1108 *pwd_last_set
= response
.data
.auth
.info3
.pass_last_set_time
;
1112 /* We want to process the response in the caller. */
1113 *p_response
= response
;
1118 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_PASSWORD_EXPIRED");
1119 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_PASSWORD_MUST_CHANGE");
1120 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_INVALID_WORKSTATION");
1121 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_INVALID_LOGON_HOURS");
1122 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_ACCOUNT_EXPIRED");
1123 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_ACCOUNT_DISABLED");
1124 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_ACCOUNT_LOCKED_OUT");
1125 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT");
1126 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_NOLOGON_SERVER_TRUST_ACCOUNT");
1127 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_NOLOGON_INTERDOMAIN_TRUST_ACCOUNT");
1128 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND");
1129 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_NO_LOGON_SERVERS");
1130 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_WRONG_PASSWORD");
1131 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_ACCESS_DENIED");
1134 if (ret
== PAM_SUCCESS
) {
1136 /* warn a user if the password is about to expire soon */
1137 _pam_warn_password_expiry(pamh
, ctrl
, &response
, &already_expired
);
1139 if (already_expired
== True
) {
1140 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
, "Password has expired "
1141 "(Password was last set: %lld, the policy says "
1142 "it should expire here %lld (now it's: %lu))\n",
1143 response
.data
.auth
.info3
.pass_last_set_time
,
1144 response
.data
.auth
.info3
.pass_last_set_time
+
1145 response
.data
.auth
.policy
.expire
,
1148 return PAM_AUTHTOK_EXPIRED
;
1151 /* inform about logon type */
1152 _pam_warn_logon_type(pamh
, ctrl
, user
, response
.data
.auth
.info3
.user_flgs
);
1154 /* inform about krb5 failures */
1155 _pam_warn_krb5_failure(pamh
, ctrl
, user
, response
.data
.auth
.info3
.user_flgs
);
1157 /* set some info3 info for other modules in the stack */
1158 _pam_set_data_info3(pamh
, ctrl
, &response
);
1160 /* put krb5ccname into env */
1161 _pam_setup_krb5_env(pamh
, ctrl
, response
.data
.auth
.krb5ccname
);
1163 /* If winbindd returned a username, return the pointer to it here. */
1164 if (user_ret
&& response
.extra_data
.data
) {
1165 /* We have to trust it's a null terminated string. */
1166 *user_ret
= (char *)response
.extra_data
.data
;
1173 /* talk to winbindd */
1174 static int winbind_chauthtok_request(pam_handle_t
* pamh
,
1177 const char *oldpass
,
1178 const char *newpass
,
1179 time_t pwd_last_set
)
1181 struct winbindd_request request
;
1182 struct winbindd_response response
;
1185 ZERO_STRUCT(request
);
1186 ZERO_STRUCT(response
);
1188 if (request
.data
.chauthtok
.user
== NULL
) return -2;
1190 strncpy(request
.data
.chauthtok
.user
, user
,
1191 sizeof(request
.data
.chauthtok
.user
) - 1);
1193 if (oldpass
!= NULL
) {
1194 strncpy(request
.data
.chauthtok
.oldpass
, oldpass
,
1195 sizeof(request
.data
.chauthtok
.oldpass
) - 1);
1197 request
.data
.chauthtok
.oldpass
[0] = '\0';
1200 if (newpass
!= NULL
) {
1201 strncpy(request
.data
.chauthtok
.newpass
, newpass
,
1202 sizeof(request
.data
.chauthtok
.newpass
) - 1);
1204 request
.data
.chauthtok
.newpass
[0] = '\0';
1207 if (ctrl
& WINBIND_KRB5_AUTH
) {
1208 request
.flags
= WBFLAG_PAM_KRB5
| WBFLAG_PAM_CONTACT_TRUSTDOM
;
1211 ret
= pam_winbind_request_log(pamh
, ctrl
, WINBINDD_PAM_CHAUTHTOK
, &request
, &response
, user
);
1213 if (ret
== PAM_SUCCESS
) {
1217 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_BACKUP_CONTROLLER");
1218 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND");
1219 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_NO_LOGON_SERVERS");
1220 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_ACCESS_DENIED");
1222 /* TODO: tell the min pwd length ? */
1223 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_PWD_TOO_SHORT");
1225 /* TODO: tell the minage ? */
1226 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_PWD_TOO_RECENT");
1228 /* TODO: tell the history length ? */
1229 PAM_WB_REMARK_CHECK_RESPONSE_RET(pamh
, ctrl
, response
, "NT_STATUS_PWD_HISTORY_CONFLICT");
1231 if (!strcasecmp(response
.data
.auth
.nt_status_string
, "NT_STATUS_PASSWORD_RESTRICTION")) {
1233 char *pwd_restriction_string
= NULL
;
1235 /* FIXME: avoid to send multiple PAM messages after another */
1236 switch (response
.data
.auth
.reject_reason
) {
1239 case REJECT_REASON_OTHER
:
1240 if ((response
.data
.auth
.policy
.min_passwordage
> 0) &&
1241 (pwd_last_set
+ response
.data
.auth
.policy
.min_passwordage
> time(NULL
))) {
1242 PAM_WB_REMARK_DIRECT(pamh
, ctrl
, "NT_STATUS_PWD_TOO_RECENT");
1245 case REJECT_REASON_TOO_SHORT
:
1246 PAM_WB_REMARK_DIRECT(pamh
, ctrl
, "NT_STATUS_PWD_TOO_SHORT");
1248 case REJECT_REASON_IN_HISTORY
:
1249 PAM_WB_REMARK_DIRECT(pamh
, ctrl
, "NT_STATUS_PWD_HISTORY_CONFLICT");
1251 case REJECT_REASON_NOT_COMPLEX
:
1252 _make_remark(pamh
, ctrl
, PAM_ERROR_MSG
, "Password does not meet complexity requirements");
1255 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
,
1256 "unknown password change reject reason: %d",
1257 response
.data
.auth
.reject_reason
);
1261 pwd_restriction_string
= _pam_compose_pwd_restriction_string(&response
);
1262 if (pwd_restriction_string
) {
1263 _make_remark(pamh
, ctrl
, PAM_ERROR_MSG
, pwd_restriction_string
);
1264 SAFE_FREE(pwd_restriction_string
);
1272 * Checks if a user has an account
1275 * 1 = User not found
1279 static int valid_user(pam_handle_t
*pamh
, int ctrl
, const char *user
)
1281 /* check not only if the user is available over NSS calls, also make
1282 * sure it's really a winbind user, this is important when stacking PAM
1283 * modules in the 'account' or 'password' facility. */
1285 struct passwd
*pwd
= NULL
;
1286 struct winbindd_request request
;
1287 struct winbindd_response response
;
1290 ZERO_STRUCT(request
);
1291 ZERO_STRUCT(response
);
1293 pwd
= getpwnam(user
);
1298 strncpy(request
.data
.username
, user
,
1299 sizeof(request
.data
.username
) - 1);
1301 ret
= pam_winbind_request_log(pamh
, ctrl
, WINBINDD_GETPWNAM
, &request
, &response
, user
);
1304 case PAM_USER_UNKNOWN
:
1314 static char *_pam_delete(register char *xx
)
1322 * obtain a password from the user
1325 static int _winbind_read_password(pam_handle_t
* pamh
,
1327 const char *comment
,
1328 const char *prompt1
,
1329 const char *prompt2
,
1337 _pam_log(pamh
, ctrl
, LOG_DEBUG
, "getting password (0x%08x)", ctrl
);
1340 * make sure nothing inappropriate gets returned
1343 *pass
= token
= NULL
;
1346 * which authentication token are we getting?
1349 authtok_flag
= on(WINBIND__OLD_PASSWORD
, ctrl
) ? PAM_OLDAUTHTOK
: PAM_AUTHTOK
;
1352 * should we obtain the password from a PAM item ?
1355 if (on(WINBIND_TRY_FIRST_PASS_ARG
, ctrl
) || on(WINBIND_USE_FIRST_PASS_ARG
, ctrl
)) {
1356 retval
= _pam_get_item(pamh
, authtok_flag
, &item
);
1357 if (retval
!= PAM_SUCCESS
) {
1359 _pam_log(pamh
, ctrl
, LOG_ALERT
,
1360 "pam_get_item returned error to unix-read-password"
1363 } else if (item
!= NULL
) { /* we have a password! */
1366 _pam_log(pamh
, ctrl
, LOG_DEBUG
,
1367 "pam_get_item returned a password");
1369 } else if (on(WINBIND_USE_FIRST_PASS_ARG
, ctrl
)) {
1370 return PAM_AUTHTOK_RECOVER_ERR
; /* didn't work */
1371 } else if (on(WINBIND_USE_AUTHTOK_ARG
, ctrl
)
1372 && off(WINBIND__OLD_PASSWORD
, ctrl
)) {
1373 return PAM_AUTHTOK_RECOVER_ERR
;
1377 * getting here implies we will have to get the password from the
1382 struct pam_message msg
[3], *pmsg
[3];
1383 struct pam_response
*resp
;
1386 /* prepare to converse */
1388 if (comment
!= NULL
&& off(ctrl
, WINBIND_SILENT
)) {
1390 msg
[0].msg_style
= PAM_TEXT_INFO
;
1391 msg
[0].msg
= CONST_DISCARD(char *, comment
);
1398 msg
[i
].msg_style
= PAM_PROMPT_ECHO_OFF
;
1399 msg
[i
++].msg
= CONST_DISCARD(char *, prompt1
);
1402 if (prompt2
!= NULL
) {
1404 msg
[i
].msg_style
= PAM_PROMPT_ECHO_OFF
;
1405 msg
[i
++].msg
= CONST_DISCARD(char *, prompt2
);
1408 /* so call the conversation expecting i responses */
1410 retval
= converse(pamh
, i
, pmsg
, &resp
);
1414 /* interpret the response */
1416 if (retval
== PAM_SUCCESS
) { /* a good conversation */
1418 token
= x_strdup(resp
[i
- replies
].resp
);
1419 if (token
!= NULL
) {
1421 /* verify that password entered correctly */
1422 if (!resp
[i
- 1].resp
1423 || strcmp(token
, resp
[i
- 1].resp
)) {
1424 _pam_delete(token
); /* mistyped */
1425 retval
= PAM_AUTHTOK_RECOVER_ERR
;
1426 _make_remark(pamh
, ctrl
, PAM_ERROR_MSG
, MISTYPED_PASS
);
1430 _pam_log(pamh
, ctrl
, LOG_NOTICE
, "could not recover authentication token");
1431 retval
= PAM_AUTHTOK_RECOVER_ERR
;
1436 * tidy up the conversation (resp_retcode) is ignored
1437 * -- what is it for anyway? AGM
1440 _pam_drop_reply(resp
, i
);
1443 retval
= (retval
== PAM_SUCCESS
)
1444 ? PAM_AUTHTOK_RECOVER_ERR
: retval
;
1448 if (retval
!= PAM_SUCCESS
) {
1449 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
,
1450 "unable to obtain a password");
1453 /* 'token' is the entered password */
1455 /* we store this password as an item */
1457 retval
= pam_set_item(pamh
, authtok_flag
, token
);
1458 _pam_delete(token
); /* clean it up */
1459 if (retval
!= PAM_SUCCESS
||
1460 (retval
= _pam_get_item(pamh
, authtok_flag
, &item
)) != PAM_SUCCESS
) {
1462 _pam_log(pamh
, ctrl
, LOG_CRIT
, "error manipulating password");
1468 item
= NULL
; /* break link to password */
1473 const char *get_conf_item_string(const pam_handle_t
*pamh
,
1482 const char *parm_opt
= NULL
;
1485 if (!(ctrl
& config_flag
)) {
1489 /* let the pam opt take precedence over the pam_winbind.conf option */
1493 if (!asprintf(&key
, "global:%s", item
)) {
1497 parm_opt
= iniparser_getstr(d
, key
);
1501 for ( i
=0; i
<argc
; i
++ ) {
1503 if ((strncmp(argv
[i
], item
, strlen(item
)) == 0)) {
1506 if ( (p
= strchr( argv
[i
], '=' )) == NULL
) {
1507 _pam_log(pamh
, ctrl
, LOG_INFO
, "no \"=\" delimiter for \"%s\" found\n", item
);
1510 _pam_log_debug(pamh
, ctrl
, LOG_INFO
, "PAM config: %s '%s'\n", item
, p
+1);
1516 _pam_log_debug(pamh
, ctrl
, LOG_INFO
, "CONFIG file: %s '%s'\n", item
, parm_opt
);
1522 const char *get_krb5_cc_type_from_config(const pam_handle_t
*pamh
, int argc
, const char **argv
, int ctrl
, dictionary
*d
)
1524 return get_conf_item_string(pamh
, argc
, argv
, ctrl
, d
, "krb5_ccache_type", WINBIND_KRB5_CCACHE_TYPE
);
1527 const char *get_member_from_config(const pam_handle_t
*pamh
, int argc
, const char **argv
, int ctrl
, dictionary
*d
)
1529 const char *ret
= NULL
;
1530 ret
= get_conf_item_string(pamh
, argc
, argv
, ctrl
, d
, "require_membership_of", WINBIND_REQUIRED_MEMBERSHIP
);
1534 return get_conf_item_string(pamh
, argc
, argv
, ctrl
, d
, "require-membership-of", WINBIND_REQUIRED_MEMBERSHIP
);
1538 int pam_sm_authenticate(pam_handle_t
*pamh
, int flags
,
1539 int argc
, const char **argv
)
1541 const char *username
;
1542 const char *password
;
1543 const char *member
= NULL
;
1544 const char *cctype
= NULL
;
1545 int retval
= PAM_AUTH_ERR
;
1546 dictionary
*d
= NULL
;
1547 char *username_ret
= NULL
;
1548 char *new_authtok_required
= NULL
;
1549 char *real_username
= NULL
;
1551 /* parse arguments */
1552 int ctrl
= _pam_parse(pamh
, flags
, argc
, argv
, &d
);
1554 retval
= PAM_SYSTEM_ERR
;
1558 _PAM_LOG_FUNCTION_ENTER("pam_sm_authenticate", pamh
, ctrl
, flags
);
1560 /* Get the username */
1561 retval
= pam_get_user(pamh
, &username
, NULL
);
1562 if ((retval
!= PAM_SUCCESS
) || (!username
)) {
1563 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
, "can not get the username");
1564 retval
= PAM_SERVICE_ERR
;
1569 /* Decode the user name since AIX does not support logn user
1570 names by default. The name is encoded as _#uid. */
1572 if ( username
[0] == '_' ) {
1573 uid_t id
= atoi( &username
[1] );
1574 struct passwd
*pw
= NULL
;
1576 if ( (id
!=0) && ((pw
= getpwuid( id
)) != NULL
) ) {
1577 real_username
= strdup( pw
->pw_name
);
1582 if ( !real_username
) {
1583 /* Just making a copy of the username we got from PAM */
1584 if ( (real_username
= strdup( username
)) == NULL
) {
1585 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
,
1586 "memory allocation failure when copying username");
1587 retval
= PAM_SERVICE_ERR
;
1592 retval
= _winbind_read_password(pamh
, ctrl
, NULL
,
1596 if (retval
!= PAM_SUCCESS
) {
1597 _pam_log(pamh
, ctrl
, LOG_ERR
, "Could not retrieve user's password");
1598 retval
= PAM_AUTHTOK_ERR
;
1602 /* Let's not give too much away in the log file */
1604 #ifdef DEBUG_PASSWORD
1605 _pam_log_debug(pamh
, ctrl
, LOG_INFO
, "Verify user '%s' with password '%s'",
1606 real_username
, password
);
1608 _pam_log_debug(pamh
, ctrl
, LOG_INFO
, "Verify user '%s'", real_username
);
1611 member
= get_member_from_config(pamh
, argc
, argv
, ctrl
, d
);
1613 cctype
= get_krb5_cc_type_from_config(pamh
, argc
, argv
, ctrl
, d
);
1615 /* Now use the username to look up password */
1616 retval
= winbind_auth_request(pamh
, ctrl
, username
, password
, member
,
1617 cctype
, NULL
, NULL
, &username_ret
);
1619 if (retval
== PAM_NEW_AUTHTOK_REQD
||
1620 retval
== PAM_AUTHTOK_EXPIRED
) {
1622 char *new_authtok_required_during_auth
= NULL
;
1624 if (!asprintf(&new_authtok_required
, "%d", retval
)) {
1625 retval
= PAM_BUF_ERR
;
1629 pam_set_data(pamh
, PAM_WINBIND_NEW_AUTHTOK_REQD
, new_authtok_required
, _pam_winbind_cleanup_func
);
1631 retval
= PAM_SUCCESS
;
1633 if (!asprintf(&new_authtok_required_during_auth
, "%d", True
)) {
1634 retval
= PAM_BUF_ERR
;
1638 pam_set_data(pamh
, PAM_WINBIND_NEW_AUTHTOK_REQD_DURING_AUTH
,
1639 new_authtok_required_during_auth
, _pam_winbind_cleanup_func
);
1646 pam_set_item (pamh
, PAM_USER
, username_ret
);
1647 _pam_log_debug(pamh
, ctrl
, LOG_INFO
, "Returned user was '%s'", username_ret
);
1651 if ( real_username
) {
1652 free( real_username
);
1656 iniparser_freedict(d
);
1659 if (!new_authtok_required
) {
1660 pam_set_data(pamh
, PAM_WINBIND_NEW_AUTHTOK_REQD
, NULL
, NULL
);
1663 if (retval
!= PAM_SUCCESS
) {
1664 _pam_free_data_info3(pamh
);
1667 _PAM_LOG_FUNCTION_LEAVE("pam_sm_authenticate", pamh
, ctrl
, retval
);
1673 int pam_sm_setcred(pam_handle_t
*pamh
, int flags
,
1674 int argc
, const char **argv
)
1676 int ret
= PAM_SYSTEM_ERR
;
1677 dictionary
*d
= NULL
;
1679 /* parse arguments */
1680 int ctrl
= _pam_parse(pamh
, flags
, argc
, argv
, &d
);
1682 ret
= PAM_SYSTEM_ERR
;
1686 _PAM_LOG_FUNCTION_ENTER("pam_sm_setcred", pamh
, ctrl
, flags
);
1688 switch (flags
& ~PAM_SILENT
) {
1690 case PAM_DELETE_CRED
:
1691 ret
= pam_sm_close_session(pamh
, flags
, argc
, argv
);
1693 case PAM_REFRESH_CRED
:
1694 _pam_log_debug(pamh
, ctrl
, LOG_WARNING
, "PAM_REFRESH_CRED not implemented");
1697 case PAM_REINITIALIZE_CRED
:
1698 _pam_log_debug(pamh
, ctrl
, LOG_WARNING
, "PAM_REINITIALIZE_CRED not implemented");
1701 case PAM_ESTABLISH_CRED
:
1702 _pam_log_debug(pamh
, ctrl
, LOG_WARNING
, "PAM_ESTABLISH_CRED not implemented");
1706 ret
= PAM_SYSTEM_ERR
;
1712 iniparser_freedict(d
);
1715 _PAM_LOG_FUNCTION_LEAVE("pam_sm_setcred", pamh
, ctrl
, ret
);
1721 * Account management. We want to verify that the account exists
1722 * before returning PAM_SUCCESS
1725 int pam_sm_acct_mgmt(pam_handle_t
*pamh
, int flags
,
1726 int argc
, const char **argv
)
1728 const char *username
;
1729 int ret
= PAM_USER_UNKNOWN
;
1731 dictionary
*d
= NULL
;
1733 /* parse arguments */
1734 int ctrl
= _pam_parse(pamh
, flags
, argc
, argv
, &d
);
1736 return PAM_SYSTEM_ERR
;
1739 _PAM_LOG_FUNCTION_ENTER("pam_sm_acct_mgmt", pamh
, ctrl
, flags
);
1742 /* Get the username */
1743 ret
= pam_get_user(pamh
, &username
, NULL
);
1744 if ((ret
!= PAM_SUCCESS
) || (!username
)) {
1745 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
,"can not get the username");
1746 ret
= PAM_SERVICE_ERR
;
1750 /* Verify the username */
1751 ret
= valid_user(pamh
, ctrl
, username
);
1754 /* some sort of system error. The log was already printed */
1755 ret
= PAM_SERVICE_ERR
;
1758 /* the user does not exist */
1759 _pam_log_debug(pamh
, ctrl
, LOG_NOTICE
, "user '%s' not found", username
);
1760 if (ctrl
& WINBIND_UNKNOWN_OK_ARG
) {
1764 ret
= PAM_USER_UNKNOWN
;
1767 pam_get_data( pamh
, PAM_WINBIND_NEW_AUTHTOK_REQD
, (const void **)&tmp
);
1769 ret
= atoi((const char *)tmp
);
1771 case PAM_AUTHTOK_EXPIRED
:
1772 /* fall through, since new token is required in this case */
1773 case PAM_NEW_AUTHTOK_REQD
:
1774 _pam_log(pamh
, ctrl
, LOG_WARNING
, "pam_sm_acct_mgmt success but %s is set",
1775 PAM_WINBIND_NEW_AUTHTOK_REQD
);
1776 _pam_log(pamh
, ctrl
, LOG_NOTICE
, "user '%s' needs new password", username
);
1777 /* PAM_AUTHTOKEN_REQD does not exist, but is documented in the manpage */
1778 ret
= PAM_NEW_AUTHTOK_REQD
;
1781 _pam_log(pamh
, ctrl
, LOG_WARNING
, "pam_sm_acct_mgmt success");
1782 _pam_log(pamh
, ctrl
, LOG_NOTICE
, "user '%s' granted access", username
);
1788 /* Otherwise, the authentication looked good */
1789 _pam_log(pamh
, ctrl
, LOG_NOTICE
, "user '%s' granted access", username
);
1793 /* we don't know anything about this return value */
1794 _pam_log(pamh
, ctrl
, LOG_ERR
, "internal module error (ret = %d, user = '%s')",
1796 ret
= PAM_SERVICE_ERR
;
1800 /* should not be reached */
1806 iniparser_freedict(d
);
1809 _PAM_LOG_FUNCTION_LEAVE("pam_sm_acct_mgmt", pamh
, ctrl
, ret
);
1815 int pam_sm_open_session(pam_handle_t
*pamh
, int flags
,
1816 int argc
, const char **argv
)
1818 int ret
= PAM_SYSTEM_ERR
;
1819 dictionary
*d
= NULL
;
1821 /* parse arguments */
1822 int ctrl
= _pam_parse(pamh
, flags
, argc
, argv
, &d
);
1824 ret
= PAM_SYSTEM_ERR
;
1828 _PAM_LOG_FUNCTION_ENTER("pam_sm_open_session", pamh
, ctrl
, flags
);
1834 iniparser_freedict(d
);
1837 _PAM_LOG_FUNCTION_LEAVE("pam_sm_open_session", pamh
, ctrl
, ret
);
1843 int pam_sm_close_session(pam_handle_t
*pamh
, int flags
,
1844 int argc
, const char **argv
)
1846 dictionary
*d
= NULL
;
1847 int retval
= PAM_SUCCESS
;
1849 /* parse arguments */
1850 int ctrl
= _pam_parse(pamh
, flags
, argc
, argv
, &d
);
1852 retval
= PAM_SYSTEM_ERR
;
1856 _PAM_LOG_FUNCTION_ENTER("pam_sm_close_session", pamh
, ctrl
, flags
);
1858 if (!(flags
& PAM_DELETE_CRED
)) {
1859 retval
= PAM_SUCCESS
;
1863 if (ctrl
& WINBIND_KRB5_AUTH
) {
1865 /* destroy the ccache here */
1866 struct winbindd_request request
;
1867 struct winbindd_response response
;
1869 const char *ccname
= NULL
;
1870 struct passwd
*pwd
= NULL
;
1872 ZERO_STRUCT(request
);
1873 ZERO_STRUCT(response
);
1875 retval
= pam_get_user(pamh
, &user
, "Username: ");
1877 _pam_log(pamh
, ctrl
, LOG_ERR
, "could not identify user");
1882 _pam_log(pamh
, ctrl
, LOG_ERR
, "username was NULL!");
1883 retval
= PAM_USER_UNKNOWN
;
1887 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
, "username [%s] obtained", user
);
1889 ccname
= pam_getenv(pamh
, "KRB5CCNAME");
1890 if (ccname
== NULL
) {
1891 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
, "user has no KRB5CCNAME environment");
1894 strncpy(request
.data
.logoff
.user
, user
,
1895 sizeof(request
.data
.logoff
.user
) - 1);
1898 strncpy(request
.data
.logoff
.krb5ccname
, ccname
,
1899 sizeof(request
.data
.logoff
.krb5ccname
) - 1);
1902 pwd
= getpwnam(user
);
1904 retval
= PAM_USER_UNKNOWN
;
1907 request
.data
.logoff
.uid
= pwd
->pw_uid
;
1909 request
.flags
= WBFLAG_PAM_KRB5
| WBFLAG_PAM_CONTACT_TRUSTDOM
;
1911 retval
= pam_winbind_request_log(pamh
, ctrl
, WINBINDD_PAM_LOGOFF
, &request
, &response
, user
);
1916 iniparser_freedict(d
);
1919 _PAM_LOG_FUNCTION_LEAVE("pam_sm_close_session", pamh
, ctrl
, retval
);
1925 * evaluate whether we need to re-authenticate with kerberos after a password change
1927 * @param pamh PAM handle
1928 * @param ctrl PAM winbind options.
1929 * @param user The username
1931 * @return boolean Returns True if required, False if not.
1934 static BOOL
_pam_require_krb5_auth_after_chauthtok(pam_handle_t
*pamh
, int ctrl
, const char *user
)
1937 /* Make sure that we only do this if
1938 * a) the chauthtok got initiated during a logon attempt (authenticate->acct_mgmt->chauthtok)
1939 * b) any later password change via the "passwd" command if done by the user itself
1942 char *new_authtok_reqd_during_auth
= NULL
;
1943 struct passwd
*pwd
= NULL
;
1945 if (!(ctrl
& WINBIND_KRB5_AUTH
)) {
1949 _pam_get_data(pamh
, PAM_WINBIND_NEW_AUTHTOK_REQD_DURING_AUTH
, &new_authtok_reqd_during_auth
);
1950 pam_set_data(pamh
, PAM_WINBIND_NEW_AUTHTOK_REQD_DURING_AUTH
, NULL
, NULL
);
1952 if (new_authtok_reqd_during_auth
) {
1956 pwd
= getpwnam(user
);
1961 if (getuid() == pwd
->pw_uid
) {
1970 int pam_sm_chauthtok(pam_handle_t
* pamh
, int flags
,
1971 int argc
, const char **argv
)
1977 /* <DO NOT free() THESE> */
1979 char *pass_old
, *pass_new
;
1980 /* </DO NOT free() THESE> */
1985 dictionary
*d
= NULL
;
1986 char *username_ret
= NULL
;
1987 struct winbindd_response response
;
1989 ZERO_STRUCT(response
);
1991 ctrl
= _pam_parse(pamh
, flags
, argc
, argv
, &d
);
1993 ret
= PAM_SYSTEM_ERR
;
1997 _PAM_LOG_FUNCTION_ENTER("pam_sm_chauthtok", pamh
, ctrl
, flags
);
1999 /* clearing offline bit for the auth in the password change */
2000 ctrl
&= ~WINBIND_CACHED_LOGIN
;
2003 * First get the name of a user
2005 ret
= pam_get_user(pamh
, &user
, "Username: ");
2007 _pam_log(pamh
, ctrl
, LOG_ERR
,
2008 "password - could not identify user");
2013 _pam_log(pamh
, ctrl
, LOG_ERR
, "username was NULL!");
2014 ret
= PAM_USER_UNKNOWN
;
2018 _pam_log_debug(pamh
, ctrl
, LOG_DEBUG
, "username [%s] obtained", user
);
2020 /* check if this is really a user in winbindd, not only in NSS */
2021 ret
= valid_user(pamh
, ctrl
, user
);
2024 ret
= PAM_USER_UNKNOWN
;
2027 ret
= PAM_SYSTEM_ERR
;
2034 * obtain and verify the current password (OLDAUTHTOK) for
2038 if (flags
& PAM_PRELIM_CHECK
) {
2039 time_t pwdlastset_prelim
= 0;
2041 /* instruct user what is happening */
2042 #define greeting "Changing password for "
2043 Announce
= (char *) malloc(sizeof(greeting
) + strlen(user
));
2044 if (Announce
== NULL
) {
2045 _pam_log(pamh
, ctrl
, LOG_CRIT
, "password - out of memory");
2049 (void) strcpy(Announce
, greeting
);
2050 (void) strcpy(Announce
+ sizeof(greeting
) - 1, user
);
2053 lctrl
= ctrl
| WINBIND__OLD_PASSWORD
;
2054 ret
= _winbind_read_password(pamh
, lctrl
,
2056 "(current) NT password: ",
2058 (const char **) &pass_old
);
2059 if (ret
!= PAM_SUCCESS
) {
2060 _pam_log(pamh
, ctrl
, LOG_NOTICE
, "password - (old) token not obtained");
2064 /* verify that this is the password for this user */
2066 ret
= winbind_auth_request(pamh
, ctrl
, user
, pass_old
,
2067 NULL
, NULL
, &response
, &pwdlastset_prelim
, NULL
);
2069 if (ret
!= PAM_ACCT_EXPIRED
&&
2070 ret
!= PAM_AUTHTOK_EXPIRED
&&
2071 ret
!= PAM_NEW_AUTHTOK_REQD
&&
2072 ret
!= PAM_SUCCESS
) {
2077 pam_set_data(pamh
, PAM_WINBIND_PWD_LAST_SET
, (void *)pwdlastset_prelim
, NULL
);
2079 ret
= pam_set_item(pamh
, PAM_OLDAUTHTOK
, (const void *) pass_old
);
2081 if (ret
!= PAM_SUCCESS
) {
2082 _pam_log(pamh
, ctrl
, LOG_CRIT
, "failed to set PAM_OLDAUTHTOK");
2084 } else if (flags
& PAM_UPDATE_AUTHTOK
) {
2086 time_t pwdlastset_update
= 0;
2089 * obtain the proposed password
2093 * get the old token back.
2096 ret
= _pam_get_item(pamh
, PAM_OLDAUTHTOK
, &pass_old
);
2098 if (ret
!= PAM_SUCCESS
) {
2099 _pam_log(pamh
, ctrl
, LOG_NOTICE
, "user not authenticated");
2103 lctrl
= ctrl
& ~WINBIND_TRY_FIRST_PASS_ARG
;
2105 if (on(WINBIND_USE_AUTHTOK_ARG
, lctrl
)) {
2106 lctrl
|= WINBIND_USE_FIRST_PASS_ARG
;
2109 ret
= PAM_AUTHTOK_ERR
;
2110 while ((ret
!= PAM_SUCCESS
) && (retry
++ < MAX_PASSWD_TRIES
)) {
2112 * use_authtok is to force the use of a previously entered
2113 * password -- needed for pluggable password strength checking
2116 ret
= _winbind_read_password(pamh
, lctrl
,
2118 "Enter new NT password: ",
2119 "Retype new NT password: ",
2120 (const char **) &pass_new
);
2122 if (ret
!= PAM_SUCCESS
) {
2123 _pam_log_debug(pamh
, ctrl
, LOG_ALERT
2124 ,"password - new password not obtained");
2125 pass_old
= NULL
;/* tidy up */
2130 * At this point we know who the user is and what they
2131 * propose as their new password. Verify that the new
2132 * password is acceptable.
2135 if (pass_new
[0] == '\0') {/* "\0" password = NULL */
2141 * By reaching here we have approved the passwords and must now
2142 * rebuild the password database file.
2144 _pam_get_data( pamh
, PAM_WINBIND_PWD_LAST_SET
,
2145 &pwdlastset_update
);
2147 ret
= winbind_chauthtok_request(pamh
, ctrl
, user
, pass_old
, pass_new
, pwdlastset_update
);
2149 _pam_overwrite(pass_new
);
2150 _pam_overwrite(pass_old
);
2151 pass_old
= pass_new
= NULL
;
2155 if (_pam_require_krb5_auth_after_chauthtok(pamh
, ctrl
, user
)) {
2157 const char *member
= get_member_from_config(pamh
, argc
, argv
, ctrl
, d
);
2158 const char *cctype
= get_krb5_cc_type_from_config(pamh
, argc
, argv
, ctrl
, d
);
2160 ret
= winbind_auth_request(pamh
, ctrl
, user
, pass_new
,
2161 member
, cctype
, &response
, NULL
, &username_ret
);
2162 _pam_overwrite(pass_new
);
2163 _pam_overwrite(pass_old
);
2164 pass_old
= pass_new
= NULL
;
2166 if (ret
== PAM_SUCCESS
) {
2168 /* warn a user if the password is about to expire soon */
2169 _pam_warn_password_expiry(pamh
, ctrl
, &response
, NULL
);
2171 /* set some info3 info for other modules in the stack */
2172 _pam_set_data_info3(pamh
, ctrl
, &response
);
2174 /* put krb5ccname into env */
2175 _pam_setup_krb5_env(pamh
, ctrl
, response
.data
.auth
.krb5ccname
);
2178 pam_set_item (pamh
, PAM_USER
, username_ret
);
2179 _pam_log_debug(pamh
, ctrl
, LOG_INFO
, "Returned user was '%s'", username_ret
);
2187 ret
= PAM_SERVICE_ERR
;
2192 iniparser_freedict(d
);
2195 /* Deal with offline errors. */
2196 PAM_WB_REMARK_CHECK_RESPONSE(pamh
, ctrl
, response
, "NT_STATUS_NO_LOGON_SERVERS");
2197 PAM_WB_REMARK_CHECK_RESPONSE(pamh
, ctrl
, response
, "NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND");
2198 PAM_WB_REMARK_CHECK_RESPONSE(pamh
, ctrl
, response
, "NT_STATUS_ACCESS_DENIED");
2200 _PAM_LOG_FUNCTION_LEAVE("pam_sm_chauthtok", pamh
, ctrl
, ret
);
2207 /* static module data */
2209 struct pam_module _pam_winbind_modstruct
= {
2211 pam_sm_authenticate
,
2214 pam_sm_open_session
,
2215 pam_sm_close_session
,
2222 * Copyright (c) Andrew Tridgell <tridge@samba.org> 2000
2223 * Copyright (c) Tim Potter <tpot@samba.org> 2000
2224 * Copyright (c) Andrew Bartlettt <abartlet@samba.org> 2002
2225 * Copyright (c) Guenther Deschner <gd@samba.org> 2005-2007
2226 * Copyright (c) Jan Rêkorajski 1999.
2227 * Copyright (c) Andrew G. Morgan 1996-8.
2228 * Copyright (c) Alex O. Yuriev, 1996.
2229 * Copyright (c) Cristian Gafton 1996.
2230 * Copyright (C) Elliot Lee <sopwith@redhat.com> 1996, Red Hat Software.
2232 * Redistribution and use in source and binary forms, with or without
2233 * modification, are permitted provided that the following conditions
2235 * 1. Redistributions of source code must retain the above copyright
2236 * notice, and the entire permission notice in its entirety,
2237 * including the disclaimer of warranties.
2238 * 2. Redistributions in binary form must reproduce the above copyright
2239 * notice, this list of conditions and the following disclaimer in the
2240 * documentation and/or other materials provided with the distribution.
2241 * 3. The name of the author may not be used to endorse or promote
2242 * products derived from this software without specific prior
2243 * written permission.
2245 * ALTERNATIVELY, this product may be distributed under the terms of
2246 * the GNU Public License, in which case the provisions of the GPL are
2247 * required INSTEAD OF the above restrictions. (This clause is
2248 * necessary due to a potential bad interaction between the GPL and
2249 * the restrictions contained in a BSD-style copyright.)
2251 * THIS SOFTWARE IS PROVIDED `AS IS'' AND ANY EXPRESS OR IMPLIED
2252 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
2253 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
2254 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
2255 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
2256 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
2257 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2258 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
2259 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
2260 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
2261 * OF THE POSSIBILITY OF SUCH DAMAGE.